212325321 has 16 divisors (see below), whose sum is σ = 305315136. Its totient is φ = 130474176.

The previous prime is 212325319. The next prime is 212325349. The reversal of 212325321 is 123523212.

It is not a de Polignac number, because 212325321 - 2¹ = 212325319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212325301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26626 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (19082196).

Almost surely, 2^212325321 is an apocalyptic number.

It is an amenable number.

212325321 is a deficient number, since it is larger than the sum of its proper divisors (92989815).

212325321 is a wasteful number, since it uses less digits than its factorization.

212325321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832.

The product of its digits is 720, while the sum is 21.

The square root of 212325321 is about 14571.3870650669. The cubic root of 212325321 is about 596.5780401986.

Adding to 212325321 its reverse (123523212), we get a palindrome (335848533).

The spelling of 212325321 in words is "two hundred twelve million, three hundred twenty-five thousand, three hundred twenty-one".